the price of cell phone jammer is also a very important factor

cell phone jammer can be switched on in order to protect and maintain the cell phone jammer
Once the manufacturer decided to put into operation, it will quantities chip to the chip manufacturers, chip manufacturers a profit. Step 2, determine the accessory components. Chip manufacturers to provide to the Design House is a reference design, Design House offers to the manufacturer's product-level design. Said before, the so-called product-level design, including the following sections 1.2 3 4. Motherboard design, Gerber files, or the PCB. System software. Need to assemble all the components list (BOM List). Supporting the shell. Chip manufacturers to provide a reference design, the aim is to sell chips, especially in the baseband chip. Other external components, leave room for the Design House to choose. Under this circumstance, cell phone jammer can work stably and reliably for a long and continuous period.
Design House to select the external components of the standard costs, as well as supplier on time delivery, etc., also need to consider factors other than the addition to the quality. Design House to determine these components, you can proceed to design the layout and connection of the motherboard, the decision list (BOM List) of the accessory components, system software, and housing. The reference design provided by the chip manufacturers, often in the form of the development board. The so-called development board, also known as the big board, because the much larger size than the phones, some board can even be comparable to the area of the newspaper. Figure 29 shows Samsung's S3C44BOX chip development board [24]. Certainly, the price of cell phone jammer is also a very important factor for the customer to consider.
Development board, reference design, including the use of HY57V641620 8M SDRAM, HY29LV160 2M the Flash. Design House, 8M of memory, 2M flash memory, replaced by a larger space, RAM and Flash. The LCD can also be replaced by the product of BYD (BYD), better performance, the price was more expensive [25]. In this development board, you can easily change the connection, testing, selection of performance and power consumption of the different parts components. Figure 29. The Samsung on S3C44BOX development board, the kernel is the ARM7TDMI, some MTK baseband chip is the same level of ARM7EJ-S core [24]. In Step 3, the development and debugging drivers.